Vulnerability-Lookup

GHSA-64H7-35X7-95W2

Vulnerability from github – Published: 2026-02-04 18:30 – Updated: 2026-02-06 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

net: hv_netvsc: reject RSS hash key programming without RX indirection table

RSS configuration requires a valid RX indirection table. When the device reports a single receive queue, rndis_filter_device_add() does not allocate an indirection table, accepting RSS hash key updates in this state leads to a hang.

Fix this by gating netvsc_set_rxfh() on ndc->rx_table_sz and return -EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device capabilities and prevents incorrect behavior.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23054"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-04T17:16:16Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hv_netvsc: reject RSS hash key programming without RX indirection table\n\nRSS configuration requires a valid RX indirection table. When the device\nreports a single receive queue, rndis_filter_device_add() does not\nallocate an indirection table, accepting RSS hash key updates in this\nstate leads to a hang.\n\nFix this by gating netvsc_set_rxfh() on ndc-\u003erx_table_sz and return\n-EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device\ncapabilities and prevents incorrect behavior.",
  "id": "GHSA-64h7-35x7-95w2",
  "modified": "2026-02-06T18:30:30Z",
  "published": "2026-02-04T18:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23054"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4cd55c609e85ae2313248ef1a33619a3eef44a16"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8288136f508e78eb3563e7073975999cf225a2f9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82c9039c8ebb715753a40434df714f865a3aec9c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d23564955811da493f34412d7de60fa268c8cb50"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-23054 (GCVE-0-2026-23054)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:04 – Updated: 2026-02-09 08:37

Title

net: hv_netvsc: reject RSS hash key programming without RX indirection table

Summary

In the Linux kernel, the following vulnerability has been resolved: net: hv_netvsc: reject RSS hash key programming without RX indirection table RSS configuration requires a valid RX indirection table. When the device reports a single receive queue, rndis_filter_device_add() does not allocate an indirection table, accepting RSS hash key updates in this state leads to a hang. Fix this by gating netvsc_set_rxfh() on ndc->rx_table_sz and return -EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device capabilities and prevents incorrect behavior.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/8288136f508e78eb3…
	https://git.kernel.org/stable/c/82c9039c8ebb71575…
	https://git.kernel.org/stable/c/4cd55c609e85ae231…
	https://git.kernel.org/stable/c/11dd9a9ef4dc4507a…
	https://git.kernel.org/stable/c/d23564955811da493…

Impacted products

Vendor

Product

Version

Linux

Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < 8288136f508e78eb3563e7073975999cf225a2f9 (git)
Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < 82c9039c8ebb715753a40434df714f865a3aec9c (git)
Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < 4cd55c609e85ae2313248ef1a33619a3eef44a16 (git)
Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < 11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3 (git)
Affected: 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 , < d23564955811da493f34412d7de60fa268c8cb50 (git)

Linux

Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/hyperv/netvsc_drv.c"
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          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
              "lessThan": "82c9039c8ebb715753a40434df714f865a3aec9c",
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              "versionType": "git"
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              "status": "affected",
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              "versionType": "git"
            },
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              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
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          ],
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          "versions": [
            {
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              "version": "4.11"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.1.162",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.122",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.67",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hv_netvsc: reject RSS hash key programming without RX indirection table\n\nRSS configuration requires a valid RX indirection table. When the device\nreports a single receive queue, rndis_filter_device_add() does not\nallocate an indirection table, accepting RSS hash key updates in this\nstate leads to a hang.\n\nFix this by gating netvsc_set_rxfh() on ndc-\u003erx_table_sz and return\n-EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device\ncapabilities and prevents incorrect behavior."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-09T08:37:52.262Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/8288136f508e78eb3563e7073975999cf225a2f9"
        },
        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/d23564955811da493f34412d7de60fa268c8cb50"
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      ],
      "title": "net: hv_netvsc: reject RSS hash key programming without RX indirection table",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23054",
    "datePublished": "2026-02-04T16:04:23.396Z",
    "dateReserved": "2026-01-13T15:37:45.951Z",
    "dateUpdated": "2026-02-09T08:37:52.262Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-64H7-35X7-95W2

CVE-2026-23054 (GCVE-0-2026-23054)

Tags

Sightings

Nomenclature